This assumption has several noteworthy points:
(i) The coefficient used in the assumption is a generalization of the uniform mixing coefficient for bounded processes; (ii) it can represent the efficiency of the estimation by the volume of the coefficient; and (iii) it is not comparable with the \(\alpha /\beta \) -mixing property because it can represent certain non-mixing processes.
This assumption can cover linear auto-regressive moving-average (ARMA) processes and a causal Bernoulli shift (CBS), which is described later.
For more details, refer to [1]}, [2]}, [3]}, [4]}.
